Fossil Identification

Bryozoa

PHYLUM: -Colonies asymmetrical, Individuals bilateral -Skeleton -Colonial

Porifera

PHYLUM: (Sponges). Porifera because they are porous. Asymmetrical. skeleton= many small spicules solitary and colonial

Cnidaria

PHYLUM: (stinging cells in their tentacles) have a skeleton

Brachiopoda

PHYLUM: Bilateral -shell -solitary?

Arthropoda

PHYLUM: Bilateral. -external skeleton. -solitary.

Echinodermata

PHYLUM: Pentameral -Skeleton -solitary?

Mollusca

PHYLUM: ecologically diverse

blastoidea

CLASS of echinodermata: pentameral skeleton -solitary?

Pelecypoda

CLASS: (clams, oysters, scallops) Bilateral between valves for burrowing forms, asymmetrical for stationary forms, such as oysters -shell -solitary

Anthozoa

CLASS: All corals belong to the class of Cnidaria called anthozoa

gastropoda

CLASS: Body bilateral, shell no symmetry due to coiling. -Shell -Solitary

Cephalopoda

CLASS: Most are bilateral -Shell -Solitary

trilobita

CLASS: bilateral. skeleton. solitary.

Echinoidea

CLASS: can be bilateral or pentamural. -Skeletal plates -solitary

Scleractinian corals

GROUP: -Radial when individual, colonies asymmetrical -Skeleton -colonial and solitary

Rugose corals

GROUP: -Radial when Individual, colonies asymmetrical. -Solitary forms common in paleozoic but some colony forming contributed to reef building. so both -Skeletons

Tabulate corals

GROUP: Radial when individual, colonies asymmetrical. -Skeleton -colonial

Irregular Echinoids

Group: pentameral, superimposed, or bilateral Skeletal plates -solitary